US7793135B2 - Mobile equipment with time control for DRM schemes - Google Patents
Mobile equipment with time control for DRM schemes Download PDFInfo
- Publication number
- US7793135B2 US7793135B2 US10/549,491 US54949104A US7793135B2 US 7793135 B2 US7793135 B2 US 7793135B2 US 54949104 A US54949104 A US 54949104A US 7793135 B2 US7793135 B2 US 7793135B2
- Authority
- US
- United States
- Prior art keywords
- rtc
- mobile equipment
- time information
- time
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
- 230000004044 response Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
- G06F1/14—Time supervision arrangements, e.g. real time clock
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Technology Law (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Electric Clocks (AREA)
- Mobile Radio Communication Systems (AREA)
- Storage Device Security (AREA)
Abstract
Description
lT≦rV,
where lT is the last time stored in the non-volatile memory and rV is the reset value input by the user. If the reset value passes the check of the decision means 6, then the reset value will be stored in the
rT−x≦nT≦rT+x,
where x is a predefined value in minutes. Hereby, it is only possible for the user to change the system time information generated by the system time generator 9, but not the real time information given by the RTC 7. If the user enters a new system time, and the new time lies within the given range, then the system time is changed by changing the offset of the RTC 7.
rT−a(rT−rV)−x≦nT≦rT−a(rT−rV)+x,
a is the inaccuracy of the time information given by the RTC 7, x is a predefined value in minutes and rV is the initial time used when the RTC 7 has been reset and has been stored in the
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP030062467 | 2003-03-20 | ||
EP03006246A EP1460509B1 (en) | 2003-03-20 | 2003-03-20 | Mobile equipment with time control for DRM schemes |
PCT/EP2004/000798 WO2004084048A1 (en) | 2003-03-20 | 2004-01-29 | Mobile equipment with time control for drm schemes |
Publications (2)
Publication Number | Publication Date |
---|---|
US20060265623A1 US20060265623A1 (en) | 2006-11-23 |
US7793135B2 true US7793135B2 (en) | 2010-09-07 |
Family
ID=32798838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/549,491 Expired - Fee Related US7793135B2 (en) | 2003-03-20 | 2004-01-29 | Mobile equipment with time control for DRM schemes |
Country Status (8)
Country | Link |
---|---|
US (1) | US7793135B2 (en) |
EP (1) | EP1460509B1 (en) |
JP (1) | JP2006521604A (en) |
CN (1) | CN100419617C (en) |
AT (1) | ATE453146T1 (en) |
BR (1) | BRPI0408411A (en) |
DE (1) | DE60330646D1 (en) |
WO (1) | WO2004084048A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080306710A1 (en) * | 2007-06-08 | 2008-12-11 | Michael Holtzman | Method for improving accuracy of a time estimate from a memory device |
US20080307237A1 (en) * | 2007-06-08 | 2008-12-11 | Michael Holtzman | Method for improving accuracy of a time estimate used to authenticate an entity to a memory device |
US20080307508A1 (en) * | 2007-06-08 | 2008-12-11 | Conley Kevin M | Method for using time from a trusted host device |
US20100024000A1 (en) * | 2007-06-08 | 2010-01-28 | Michael Holtzman | Method for improving accuracy of a time estimate used in digital rights management (DRM) license validation |
US20110040976A1 (en) * | 2009-08-17 | 2011-02-17 | Rahav Yairi | Method and Memory Device for Generating a Time Estimate |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7266714B2 (en) * | 2004-06-15 | 2007-09-04 | Dolby Laboratories Licensing Corporation | Method an apparatus for adjusting the time of a clock if it is determined that the degree of adjustment is within a limit based on the clocks initial time |
KR100619981B1 (en) * | 2005-01-08 | 2006-09-11 | 엘지전자 주식회사 | Method for enhancing digital rights management function of mobile communication terminal |
US8640219B2 (en) | 2005-06-23 | 2014-01-28 | Thomson Licensing | Digital rights management (DRM) enabled portable playback device, method and system |
DE102005050352B4 (en) | 2005-10-20 | 2008-02-07 | Infineon Technologies Ag | Time indication test unit, electronic device and method for checking a time indication |
US8176546B2 (en) | 2006-06-20 | 2012-05-08 | Nds Limited | Time information management system |
KR100784976B1 (en) | 2006-10-12 | 2007-12-11 | 삼성전자주식회사 | Method and apparatus for operating clock in mobile terminal |
EP2056227B1 (en) | 2007-10-31 | 2016-02-24 | EchoStar Technologies L.L.C. | System and method for employing a controlled-modification current time value |
KR100923412B1 (en) | 2007-12-24 | 2009-10-27 | 에스케이 텔레콤주식회사 | System and method for setting up real time clock, and apparatus to the same |
US8886957B2 (en) | 2009-11-09 | 2014-11-11 | 3Dlabs Inc. Ltd. | Systems, methods, software, and components using tamper-proof real-time clock |
JP5260706B2 (en) | 2011-06-24 | 2013-08-14 | レノボ・シンガポール・プライベート・リミテッド | Power system for portable electronic equipment with timekeeping circuit |
CN103679064A (en) * | 2012-08-31 | 2014-03-26 | 联想(北京)有限公司 | Setting device and method, nonvolatile storage and electronic device |
US9292712B2 (en) * | 2012-09-28 | 2016-03-22 | St-Ericsson Sa | Method and apparatus for maintaining secure time |
CN109857234B (en) * | 2018-12-28 | 2021-10-19 | 曙光信息产业(北京)有限公司 | Online resetting device of real-time clock of blade server |
WO2021014614A1 (en) * | 2019-07-24 | 2021-01-28 | 三菱電機株式会社 | Time synchronization device, time synchronization method, and time synchronization program |
SG10202100813PA (en) * | 2021-01-26 | 2021-02-25 | Ensign Infosecurity Pte Ltd | A SYSTEM AND METHOD FOR DETECTING DOMAIN GENERATION ALGORITHMS (DGAs) USING DEEP LEARNING AND SIGNAL PROCESSING TECHNIQUES |
KR20230073876A (en) * | 2021-11-19 | 2023-05-26 | 삼성전자주식회사 | Electronic device and operating method thereof |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1188742A (en) | 1997-09-09 | 1999-03-30 | Olympus Optical Co Ltd | Electronic camera |
US6282431B1 (en) * | 1997-10-28 | 2001-08-28 | Fujitsu Limited | Time correcting method and portable remote telephone terminal in which time is corrected in accordance with such method |
JP2002090480A (en) | 2000-09-18 | 2002-03-27 | Seiko Epson Corp | Clock signal supply device and its control method |
US6393263B1 (en) | 1998-02-19 | 2002-05-21 | Denso Corporation | Mobile communications terminal and system with offset time feature |
US20020064096A1 (en) * | 2000-08-03 | 2002-05-30 | Yoshitaka Ukita | Reproduction apparatus and reproduction method |
US6470449B1 (en) | 1989-07-05 | 2002-10-22 | Robert Roy Blandford | Time-stamped tamper-proof data storage |
JP2002341068A (en) | 2001-05-11 | 2002-11-27 | Sony Corp | Information processing device and method, recording medium and program |
US20030004875A1 (en) | 1999-11-03 | 2003-01-02 | D. Michael Corporation | Apparatus for encouraging timely periodic payments associated with a computer system |
US6556512B1 (en) * | 1999-10-20 | 2003-04-29 | Sony International (Europe) Gmbh | Mobile terminal for a wireless telecommunication system with accurate real time generation |
EP1801609A1 (en) * | 2005-12-23 | 2007-06-27 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for time synchronisation |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5526079A (en) * | 1993-03-12 | 1996-06-11 | Nikon Corporation | Data recording system for a camera |
-
2003
- 2003-03-20 DE DE60330646T patent/DE60330646D1/en not_active Expired - Lifetime
- 2003-03-20 AT AT03006246T patent/ATE453146T1/en not_active IP Right Cessation
- 2003-03-20 EP EP03006246A patent/EP1460509B1/en not_active Expired - Lifetime
-
2004
- 2004-01-29 BR BRPI0408411-0A patent/BRPI0408411A/en not_active IP Right Cessation
- 2004-01-29 CN CNB2004800074902A patent/CN100419617C/en not_active Expired - Fee Related
- 2004-01-29 WO PCT/EP2004/000798 patent/WO2004084048A1/en active Application Filing
- 2004-01-29 US US10/549,491 patent/US7793135B2/en not_active Expired - Fee Related
- 2004-01-29 JP JP2006504399A patent/JP2006521604A/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6470449B1 (en) | 1989-07-05 | 2002-10-22 | Robert Roy Blandford | Time-stamped tamper-proof data storage |
JPH1188742A (en) | 1997-09-09 | 1999-03-30 | Olympus Optical Co Ltd | Electronic camera |
US6282431B1 (en) * | 1997-10-28 | 2001-08-28 | Fujitsu Limited | Time correcting method and portable remote telephone terminal in which time is corrected in accordance with such method |
US6393263B1 (en) | 1998-02-19 | 2002-05-21 | Denso Corporation | Mobile communications terminal and system with offset time feature |
US6556512B1 (en) * | 1999-10-20 | 2003-04-29 | Sony International (Europe) Gmbh | Mobile terminal for a wireless telecommunication system with accurate real time generation |
US20030004875A1 (en) | 1999-11-03 | 2003-01-02 | D. Michael Corporation | Apparatus for encouraging timely periodic payments associated with a computer system |
US20020064096A1 (en) * | 2000-08-03 | 2002-05-30 | Yoshitaka Ukita | Reproduction apparatus and reproduction method |
JP2002090480A (en) | 2000-09-18 | 2002-03-27 | Seiko Epson Corp | Clock signal supply device and its control method |
JP2002341068A (en) | 2001-05-11 | 2002-11-27 | Sony Corp | Information processing device and method, recording medium and program |
EP1801609A1 (en) * | 2005-12-23 | 2007-06-27 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for time synchronisation |
Non-Patent Citations (3)
Title |
---|
International Search Report; PCT/EP 2004000798; May 24, 2004. |
M. Schläger, B. Rathke, A. Wolisz, S. Bodenstein, "Advocating a remote socket architecture for internet access using wireless LANs", Jan. 2001, Mobile Networks and Applications , vol. 6 Issue 1, Publisher: Kluwer Academic Publishers, pp. 23-42. * |
Written Opinion of the International Searching Authority; May 24, 2004. |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080306710A1 (en) * | 2007-06-08 | 2008-12-11 | Michael Holtzman | Method for improving accuracy of a time estimate from a memory device |
US20080307237A1 (en) * | 2007-06-08 | 2008-12-11 | Michael Holtzman | Method for improving accuracy of a time estimate used to authenticate an entity to a memory device |
US20080307508A1 (en) * | 2007-06-08 | 2008-12-11 | Conley Kevin M | Method for using time from a trusted host device |
US20100024000A1 (en) * | 2007-06-08 | 2010-01-28 | Michael Holtzman | Method for improving accuracy of a time estimate used in digital rights management (DRM) license validation |
US8688588B2 (en) | 2007-06-08 | 2014-04-01 | Sandisk Technologies Inc. | Method for improving accuracy of a time estimate used in digital rights management (DRM) license validation |
US8688924B2 (en) * | 2007-06-08 | 2014-04-01 | Sandisk Technologies Inc. | Method for improving accuracy of a time estimate from a memory device |
US8869288B2 (en) | 2007-06-08 | 2014-10-21 | Sandisk Technologies Inc. | Method for using time from a trusted host device |
US20110040976A1 (en) * | 2009-08-17 | 2011-02-17 | Rahav Yairi | Method and Memory Device for Generating a Time Estimate |
US8448009B2 (en) | 2009-08-17 | 2013-05-21 | Sandisk Il Ltd. | Method and memory device for generating a time estimate |
US8751855B2 (en) | 2009-08-17 | 2014-06-10 | Sandisk Il Ltd. | Method and memory device for generating a time estimate |
Also Published As
Publication number | Publication date |
---|---|
EP1460509B1 (en) | 2009-12-23 |
CN1761925A (en) | 2006-04-19 |
BRPI0408411A (en) | 2006-03-21 |
CN100419617C (en) | 2008-09-17 |
WO2004084048A1 (en) | 2004-09-30 |
US20060265623A1 (en) | 2006-11-23 |
DE60330646D1 (en) | 2010-02-04 |
EP1460509A1 (en) | 2004-09-22 |
ATE453146T1 (en) | 2010-01-15 |
JP2006521604A (en) | 2006-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SONY ERICSSON MOBILE COMMUNICATIONS AB, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DINESEU, DAN;REEL/FRAME:017873/0547 Effective date: 20051017 |
|
AS | Assignment |
Owner name: SONY ERICSSON MOBILE COMMUNICATIONS AB, SWEDEN Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE INVENTOR'S NAME PREVIOUSLY RECORDED ON REEL 017873 FRAME 0547;ASSIGNOR:DINESCU, DAN;REEL/FRAME:018023/0170 Effective date: 20051017 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
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FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.) |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20180907 |